Dobby for looms.



J. TELLIBR.

DOBBY FOR LOOMS.

APPLICATION FILED SEPT. 25, 1913.

Patented June 16,1914.

I cZ/"enzle 75/7/16)" an indicator lever.

UNITED STATES PATENT. OFFICE.

JEREMIE TELLIER, on NEW BEDFOIR-D, MASSACHUSETTS, ASSIGNOR. or ONE-HALF To DOLPI-IIS POIRIER, on NEW BEDFORLD, MASSACHUSETTS.

DOBBY FOR LOOMS.

Specification of Letters Patent.

Application filed September 25, 1913.

To all whom it may concern Be it known that I, JEREMIE TELLIER, a citizen of the United States, residing at New Bedford, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in Dobbies for Looms, of which the following is a specification.

In my U. S. Letters Patent No. 1,052,768, of Feb. 11, 1913, I have shown a dobby for looms in which the latches are normally held out of the path of the actuator bar by springs and the latches are connected to the indicator levers by a novel arrangement of rods and levers.

I have now found that the mechanism can be considerably simplified, and in accordance with my present invention I provide springs for normally holding the latches out of the paths of the actuator bars as heretofore, and I provide latch-actuating rods which directly connect the latches with said indicator levers, thus dispensing with much of the mechanism heretofore employed.

In the accompanying drawings :-Figure 1 shows a vertical section through a dobby embodying my improvements. Fig. 2 is a 1 detail view, in perspective, showing how one of the upper latches is connected with its spring and with the rod which joins it with Fig. 3 is a detail view, in perspective, showing how one of the lower latches is connected with its actuating rod and with its spring, and how it is guided by a suitably constructed grid.

The dobby frame A, on which the several parts of the dobby mechanism are supported, is of usual construction. The harness jacks B are pivotally supported as usual on a transverse rod C and their pivotal movement is limited by a transverse bar D, in the usual way. Each harness jack has pivotally supported thereon a connector E, and to the upper end of each connector is pivotally attached an upper latch F, while a lower latch G is pivotally attached to the lower end of the connector, in the usual way.

The upper and lower actuator bars H and I, as heretofore, are guided in slots a formed in the arms A of the dobby frame, and these bars are actuated by mechanism not shown but which may be of the ordinary kind. The indicator levers J are pivotally supported on a transverse rod K and normally rest at their outer ends on a strop bar L, being separated and guided at their outer ends by vertical pegs Z rising from the stop bar. The pattern cylinder M is of the ordinary kind, carrying radially arranged pegs m, and this cylinder may be actuated by any appropriate mechanism.

My improvements are applicable to the particular type of dobby shown, and also to others having the same general characterlstics.

The latches F are guided by a grid N and the latches G are guided by a grid 0. Each latch F in the upper set of latches is connected with an appropriate indicator lever J by a rod P. This rod may be made of wlre, and it is looped at its lower end 29 and connected with a hook on the rear end of the corresponding indicator lever. At its upper end the rod is enlarged at p and formed with an opening p to receive the latch, the construction being such that the rod will move the latch positively both upwardly and downwardly but will permit the latch to inove through it freely in a horizontal direc- In order to normally hold the latches out of the path of the actuator bar, I provide springs Q. Each of said springs may be made of wire coiled around a horizontally arranged rod R, extending from one end of the dobby frame to the other, and supported in brackets S, attached to the dobby frame. One end of the spring Q is connected with the enlarged upper end 7) of a rod P, while the other end is engaged with another rod T, which may also extend from one side of the frame to the other. The construction and arrangement is such that the springs Q, normally hold all the latches F out of the path of the actuator bar H, but when the indicator levers J, to which the rods P are connected, are raised by the pattern cylinder the rods P will be pulled downward and thus positively move the latches into the path of the actuator bar.

Each latch G of the lower set of latches is connected with an appropriate indicator lever J by a rod U, which is looped at its lower end and connected with the hooked end of an indicator lever. At its upper end the rod U is provided with a head a which is formed with an opening a through which the latch G extends. Each head a is connected with a spring V, which is coiled around a rod V extending from one side of the frame to the other, one end of the spring being connected ate. withthe head a and the other end 41'' of the spring being connected with the grid 0, in the manner clearly shown in Figs. 1 and 3. The arrangement is. such that the latches of the lower set are nor mally held elevated out of the path of th actuator bar I. They may move horizontally freely in the heads a and they are directly connected with appropriate indicator levers and are moved positively in both direct'ions;

By my improvements the mechanism SllGWILiIl my prior patent is very much simpli'fied.

I claim as my invention I. In a 100m dobby,thecombination with an actuator bar, the latches and indicator levers, of latch-actuating rods extending directly from the indicator levers to the latches, directly connected therewith and provided. with, openings at their upper ends through which the latches extend, and springs connected With the dobby' frame the latches and thus directly connecting the indicator levers. and latches, enlargements on the upper ends of said latch-actuating rods having openings to receive the latches, and springs connected with the dobby frame and engaging said rods to normally hold the latches in an elevated position out of the path of the actuator bar.

In testimony whereof I have hereunto subscribed my name.

J TELLIER.

Witnesses JOHN B. LOWNEY, FRANK L. Rooms.

Copies-of this patent may heobtaineidfqr iive cents each; by addressing the Commissioner of Patents Washing D- 03 

